JP2656010B2 - Roadbed support plate structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed support plate structure in a tracked track structure of a railway track.

[0002]

2. Description of the Related Art Rainwater has a great effect on the maintenance of tracked track on a roadbed, that is, on the occurrence and progress of track deviation. For this reason, a 3% crossing water gradient was applied to the roadbed to drain water.

[0003]

However, even when a water gradient is formed on the roadbed surface, the roadbed surface immediately below the rails sinks under the load of the train, and water stays there.
The rainwater that has infiltrated into the roadbed softens the roadbed surface in this way, facilitating sinking of the trackbed, and the roadbed soil softened by rainwater and groundwater rises in the gap between the trackbeds, and is loaded on the trackbed surface by the load when passing through the train. The erupting mud phenomenon occurs. The mud squirted into the ballast in this way reduces the frictional resistance between the ballasts, and easily deforms the ballast. Furthermore, when the mud between the bed is solidified, it impairs the elasticity of the bed,
Makes vibrations when passing trains easier.

When the ballast in the roadbed sinks into the roadbed and the infiltration of earth and sand and mud in the roadbed increases, the drainage gradient provided on the roadbed surface becomes ineffective as described above, and the drainage in the roadbed becomes poor, and Water stagnates These synergistic effects promote deterioration of the track bed and promote destruction of the orbit. The present invention has been proposed in view of the above-mentioned problems of the prior art, and aims to prevent rainwater from seeping into the roadbed, have a large drainage effect, and effectively prevent the occurrence and progress of track deviation. Another object of the present invention is to provide a track bed support plate structure in a track floor track structure that can be prevented.

[0005]

In order to achieve the above object, according to the track bed support plate structure of the present invention, the partition walls are erected at regular intervals smaller than the bed particle diameter in the direction perpendicular to the track, The top surface of each of the partition walls is provided with a gradient that decreases toward the center of the track, and a groove formed between adjacent partition walls is provided with a gradient that decreases toward the outside of the track. ing.

[0006]

According to the present invention, as described above, at regular intervals smaller than the diameter of the roadbed, the roadbed support plate composed of a partition wall erected perpendicular to the track is inserted between the roadbed and the roadbed. Therefore, the roadbed and the roadbed are blocked by the roadbed support plate, and accordingly, seepage of rainwater into the roadbed is prevented.

Further, the grooves formed between the adjacent partition walls are provided with a gradient that becomes lower toward the outside of the track, so that drainage is easily performed. Furthermore, since the top surface of the bulkhead is provided with a gradient that decreases toward the track center, the load and vibration caused by the passage of the train and the flow of the roadbed to the outside of the track due to vibration are prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Reference numeral 1 denotes a roadbed support plate disposed on the roadbed surface and made of a thermoplastic resin having appropriate strength and toughness, FRP, elastomer, hard rubber and other materials. It is erected perpendicularly to the track at small regular intervals, and the top surface of each partition wall 1a is provided with a gradient that decreases toward the center of the track, and is formed in a groove 1b formed between adjacent partition walls 1a. On the other hand, a gradient is provided so as to be directed outward of the orbit and become lower.

In the figure, reference numeral 2a denotes a roadbed shoulder, and 2b denotes a starting point of the roadbed shoulder. 3 is a sleeper and 4 is a rail. Since the illustrated embodiment is configured as described above, the roadbed and the roadbed are interrupted by the roadbed support plate inserted therebetween,
Infiltration of rainwater is prevented. Further, since the top surface of the partition wall 1a is configured to be lowered toward the center of the orbit,
The load and vibration caused by the train passing prevent the roadbed from flowing out of the track, while the ballast 2 adjacent to the ballast 2
The groove 1b formed between the groove 1a and the groove 1a is provided with a gradient such that it becomes lower toward the outside of the track, and together with the ease of drainage, the occurrence and progress of track deviation are prevented. .

If necessary due to the external force from the train, the material of the roadbed support plate, etc., it is also possible to reinforce the structure by arranging beams in the track direction on the partition walls.
4 and 5 show another embodiment of the present invention.
The starting point on the track center side of a is not the track center but the rail center 1c
Then, the slope of the upper surface of the partition wall 1a becomes lower just below the rail 4, so that the flow of the roadbed to the outside of the track is prevented, and the maximum thickness of the upper surface of the partition wall 1a is reduced. The cost of the board is reduced.

In the figure, the same parts as those of the above embodiment are denoted by the same reference numerals. In the vicinity of the roadbed shoulder 2a, the influence of the train load and vibration is small, so that the partition 1a at this portion can be lowered (see FIG. 6) or omitted. (See FIG. 7) In the figure, 1d is the starting point of the roadbed shoulder in the latter case. The width of the track bed support plate in the rail direction is considered to be about 1 m in order to facilitate handling, but the most important configuration of the track bed support plate structure according to the present invention is to block water between the track bed and the roadbed. Element
The structure of the connection part of the roadbed support plate is important.

FIGS. 8 and 9 and FIGS. 10A and 10B show each embodiment of the connection structure. In the embodiment shown in FIG. 8, an end partition wall in the rail direction of an L-shaped roadbed support plate is shown. 1e
And the end partition wall 1e 'of the opposite sided bed support plate formed in an inverted L-shape adjacent thereto. In FIG. 9, a gate-shaped connecting plate 1f is fitted across the end partition walls 1e, 1e 'of the partition walls 1a, 1a' of the adjacent roadbed.

In the embodiment shown in FIG. 10, the end partition walls 1g, 1g 'of the adjacent roadbeds 1a, 1a' are brought into contact with each other and a filler 1h is filled therebetween.

[0014]

According to the present invention, the roadbed support plate having the partition walls erected in the direction perpendicular to the track is inserted between the roadbed and the roadbed at regular intervals smaller than the particle diameter of the roadbed. Between the roadbed and the roadbed is blocked by the roadbed support plate, thereby preventing seepage of rainwater into the roadbed. Further, the grooves formed between the partition walls are drained by being inclined so as to become lower outside the track, thereby preventing deterioration of the trackbed due to infiltration of rainwater, and the top surface of each of the partition walls is formed by a track. Along with the slope that decreases toward the center, the load due to the train passing and the movement of the trackbed to the outside of the track due to vibration are prevented, preventing the occurrence of track deviation and progress Is done.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a roadbed support plate structure according to the present invention.

FIG. 2 is a plan view of the roadbed support plate in FIG.

FIG. 3 is a side view of the roadbed support plate in FIG. 1;

FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention.

FIG. 5 is a plan view of the roadbed support plate in FIG. 4;

FIG. 6 is a left half vertical sectional front view showing another embodiment of the roadbed support plate.

FIG. 7 is a left half vertical sectional front view showing still another embodiment of the roadbed support plate.

FIG. 8 is a side sectional view showing one embodiment of a connection portion of the roadbed support plate.

FIG. 9 is a side sectional view showing another embodiment of the connection portion of the roadbed support plate.

FIG. 10 is a side sectional view showing still another embodiment of the connecting portion of the roadbed support plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roadbed support plate 1a, 1a 'Partition wall 1b Groove 1c Rail center 1d Roadbed shoulder start point 1e, 1e' End partition wall of roadbed support plate 1f Connection plate 1g, 1g 'End partition 1h Filling material 2 Roadbed ballast 2a Roadbed shoulder 2b Roadbed shoulder start point 3 Sleeper 4 Rail

Claims (1)

(57) [Claims] 1. A partition wall is erected in a direction perpendicular to the track at regular intervals smaller than the bed diameter, and a slope is provided such that the top surface of each partition wall becomes lower toward the track center.
A roadbed support plate structure in which a groove formed between adjacent partition walls is provided with a gradient that becomes lower toward the outside of the track.